. >> pelley: anna, thanks very much. as we said, it is all headed east. soaking rains are expected along the i-95 corridor tomorrow and wednesday with snow in northern new england. today president obama called this weekend's nuclear deal with iran a first step in preventing iran from building an atomic bomb. under this agreement, iran said that it won't expand its uranium enrichment for six months. it also agreed to new monitoring. in return, the u.s. and its allies will ease slightly some economic sanctions that have crippled the iranian economy. we have two reports on this tonight beginning with major garrett at the white house. major? >> reporter: scott, the white house got to work almost immediately on the next phase of these talks, the one december signed to end-- not merely halt-- iran's nuclear weapons program. at president obama's invitation, israel's national security advisor will travel to washington next week to play a key role in those negotiations. facing skepticism from congress and israel president obama defended the deal with iran as a vic